// Zoo.java [dynamic]

//  this is a simple client program, unrealistic,

//  but shows the Show() methods only dealing with

//  the appropriate personality (and its UI)

//  This is the dynamic version of the client, it

//  also does slightly different things.

public class Zoo 

{

  static public void main(String args[]) {

    // some animals are born in our zoo...

    SeaLion toto   = new SeaLion(); toto.setName("Toto");

    Whale   keiko  = new Whale();   keiko.setName("Keiko");

    Bat     drac   = new Bat();     drac.setName("Drac");

    System.out.println("TIME 0 - Zoo is created");



    toto.personify( "Tracer" );

    keiko.personify( "Tracer" );

    drac.personify( "Tracer" );



    pp(toto); pp(keiko); pp(drac);



    // toto and keiko can swim the moment

    // they are born. drac, however, can't fly

    keiko.personify( "Swimmer" );

    toto.personify( "Swimmer" );



    System.out.println("TIME 1 - animals created, Whale and SeaLion swim");

    pp(toto); pp(keiko); pp(drac);



    // they've been just born, but the 

    // show must go on anyways...

    PerformShow( toto  );

    PerformShow( keiko );

    PerformShow( drac  );



    

    // let's pretend time goes on. toto and 

    // keiko are getting strong enough to jump

    // also, drac can now fly

    toto.personify( "Jumper" );

    keiko.personify( "Jumper" );

    drac.personify( "Flier" );



    System.out.println("TIME 2 - Whale and SeaLion jump, Bat flies");

    pp(toto); pp(keiko); pp(drac);

    PerformShow( toto );

    PerformShow( keiko );

    PerformShow( drac );



    // finally, toto can also walk...

    toto.personify( "Walker" );



    System.out.println("TIME 3 - SeaLion walks");

    pp(toto);

    PerformShow( toto );



    // time goes on, and toto and keiko get old, not

    // strong enough to walk or jump anymore

    toto.forget( "Walker" ); 

    toto.forget( "Jumper" );

    keiko.forget( "Jumper" );

    System.out.println("TIME 4 - Whale and SeaLion forget to walk and jump");

    pp(toto); pp(keiko); pp(drac);

    PerformShow( toto );

    PerformShow( keiko );

    PerformShow(drac);

  }



  // master of ceremonies...

  static void PerformShow(Animal animal) {

    System.out.println(" PerformShow with " + animal);

    if ( animal.personifies( "Swimmer" ) )

      PoolShow( (Swimmer)animal );

    if ( animal.personifies( "Walker" ) )

      FieldShow( (Walker)animal );

    if ( animal.personifies( "Flier" ) )

      SkyShow( (Flier)animal );

    if ( animal.personifies( "Jumper" ) )

      JumpShow( (Jumper)animal );

  }

  static void PoolShow(Swimmer swimmer) { 

    System.out.println("  PoolShow with " + swimmer);

    swimmer.Swim( 1, 1 ); 

  }

  static void FieldShow(Walker walker)  {  

    System.out.println("  FieldShow with " + walker);

    walker.Walk( 1 );  

  }

  static void SkyShow(Flier flier)      {  

    System.out.println("  SkyShow with " + flier);

    flier.Fly( 1, 1, 1 );    

  }

  static void JumpShow(Jumper jumper)   {  

    System.out.println("  JumpShow with " + jumper);

    jumper.Jump(1, 1, 1); 

  }

  // auxiliary function

  static void pp(Animal a) {

    System.out.println( a.getName() + ": " + a.personalities() );

  }



}